UNAS 4 Two Minute Review - SHOULD YOU BUY IT?

NASCompares
NASComparesMar 7, 2026

Why It Matters

The UNAS 4’s aggressive price and easy integration lower the barrier for small businesses to adopt network storage, while its technical limits signal that more demanding workloads will still need higher‑end NAS platforms.

Key Takeaways

  • UNAS 4 priced at $379 offers four HDD bays.
  • Includes two M.2 NVMe slots and native 2.5 GbE.
  • Low noise and power draw around 10‑12 W during operation.
  • Integrated UniFi software works offline without Ubiquiti services.
  • No expansion; drives fixed, M.2 slots limited to caching.

Summary

The video reviews Ubiquiti’s UNAS 4, a compact network‑attached storage appliance now on sale for $379. It packs four 3.5‑inch drive bays, two M.2 NVMe slots, and a built‑in 2.5 GbE port, positioning it as a low‑cost, turnkey solution for small‑office or home users.

At the hardware level the unit draws only about 10‑12 W and measures roughly 34‑35 dB, making it both power‑efficient and quiet. The ARM‑based CPU with 4 GB of fixed memory runs Ubiquiti’s Drive 4.0 OS, which presents a single‑pane‑of‑glass interface for provisioning and monitoring. The front‑mounted LCD and bottom‑mounted drive trays give it a distinctive, service‑friendly design.

The reviewer notes that the NAS can operate completely offline, bypassing any Ubiquiti cloud services, which appeals to privacy‑concerned users. However, the PoE‑only connectivity means power and data share a single cable with no fail‑over, and the M.2 slots are limited to cache, not additional storage. Expansion is impossible beyond the four internal bays, and the USB port offers only basic external storage.

For buyers seeking an inexpensive, quiet NAS that integrates smoothly with existing UniFi networks, the UNAS 4 is compelling. Yet enterprises or power users requiring redundancy, expandability, or higher performance may find the device’s ARM processor, fixed memory, and lack of secondary ports restrictive, prompting consideration of larger Ubiquiti models or competing solutions.

Original Description

Full Length UNAS 4 Review Video - https://www.youtube.com/watch?v=b0munJngMyE
UniFi UNAS Pro 4 (BIG Written Review & Tests) - https://nascompares.com/review/unas-pro-4-review/
My UNAS Pro 4 YouTube Review - https://www.youtube.com/watch?v=BQm3LqecA08
UniFi UNAS Pro 8 Original Review - https://www.youtube.com/watch?v=UOOFqhf4S8k
UniFi UNAS 2 Review https://youtu.be/1jcQaWI5C_g
UniFi UNAS Pro 8 Review https://youtu.be/UOOFqhf4S8k
UniFi UNAS Pro, 6 Months Later (video) - https://www.youtube.com/watch?v=eZMJoQBNV3U
UniFi UNAS Pro - 3 MONTHS LATER https://www.youtube.com/watch?v=0TOX1NIVQyQ
Synology vs UniFi UNAS Pro - https://youtu.be/iTbSuDgEPM8
UniFi UNAS Pro, PROS and CONS - https://youtu.be/_07W7NKxEno
UniFi UNAS Pro VS QNAP NAS - https://youtu.be/D8CpPW_m7EQ
UniFi UNAS Pro NAS - BIG REVIEW https://youtu.be/rbq2so5S-zI
UniFi UNAS Pro. COMPLETE SETUP GUIDE https://youtu.be/x7k-eUeQl7U
Thinking of buying a product mentioned in today's video? If this video has helped you make that decision, you can find the things I mention using the links here and we will get a small % profit of whatever you buy, which goes directly back to NASCompares and allows me and Eddie to keep doing what we do here on YouTube and the Blog. Alternatively, head straight to Amazon here - https://amzn.to/3TjM0kj

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